Tecra M2 doesn't boot is it a processor problem?

It powers up, power on good beep, power and battery LED turn on, HD LED flash, dvd rom seems to read (LED lights and DVD turns/runs), can choose boot selector (dvd, hd,usb etc). if you continue to boot, you'll have a flashing cursor on the top left side of the screen
can not access bios.
Could you help me isolate the problem, is it the processor or a motherboard problem?
Thanks,
Dave

Given the symptoms, it points to motherboard.. if it was processor, video or ram. it wouldnt boot at all and you'd just get error beeps from your laptop. i'd first try resetting the bios, by removing the bios battery for 30 min, then putting it back in. if that doesnt work try changing it out, usually costs under 8 bucks. if that doesnt work then I would change out the motherboard, if its cost effective.

Pls take out any cd or dvd that is in the dvd drive and see if it helps always keep ur boot device priority to hard drive

if no help then ur OS is not loading in some cases when boot sector is damaged the OS doesnt load try factory resetting ur laptop thru backup disk if the os is loaded and it works then it is ok but if problem persists then ur hard drive is giving fault kindly replace it everything will be ok

there are 2 things that are responsible for booting process

1.RAM which infact switch on the motherboard and initiate procedure for booting process if u see any type of text or diaplay on screeen then it is working ok .

2. Hard disk , when the system powers up Ram asks hard disk for OS files to load the OS if hard disk is faulty it doesnt give up these files hence the OS doesnt load and booting process stops here it seems like u have stucked here so hard disk seems like the main culprit but pls try to reset ur OS thru backup disk here see if it works if after some time system faces same fault the replace hard drive

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I would recommend to disconnect all external devices and also internal cards and devices (hard drive, cd rom driver etc) just have your motherboard processor keyboard and power supply connectors and front pannel connectors press the power button and watch the keyboard, if it flashes the lights twice or once. if once turn off the power and then remove your ram modules and turn on check if you get beeps from the motherboard buzzers, if not its is evident that the motherboard or processor is definitely bad. you need to check and replace them.

some times even a bad power supply with less supply of voltage cause this if you have another power supply (SMPS) unit check with it.

Try this:Turn it off.Disconnect power cord and any other device attached to it.Take battery out.Without anything attached. Hold down the power button for 10-15 seconds.Connect the power cord only.Hold down F2 (while it's off)Turn it on while holding down F2.Let go of F2 when something comes out of the screen.If multi colored lines still appears.You have either defective LCD(screen) or video card.

So, take your computer to a qualified technician, to first check that the connectors (power, data) from the motherboard to the CD/DVD drive are good, and then, if necessary, to remove & replace the "dead" drive.

I have seen a lot of Toshiba Laptops with bad "DC Connectors" on the motherboard. It sounds like you know what your doing so here a link on how to disassemble your laptop.http://www.irisvista.com/tech/laptops/ToshibaM2/tecra_M2_disassembly_1.htm and here is another on how to repair the dc connector. http://www.laptoprepair101.com/laptop/2006/05/27/failed-laptop-power-jack-workaround/

I'm inclined to believe something is going on with the DVD drive, perhaps a I/O cable or driver issue, it just seems like what you said about the drive sounding like it's trying to read is a clue, what I would try if you have not already ,is since you said you can get to get to the Bios usually the default for boot sequence is CD/DVD drive first unless you change it, see if you can change the boot sequence from DVD drive first to HDD first and see if you can bypass it, then it might just boot, if that works then that was the cause,I see no other reason why the Drive should be trying to read other than the boot sequence. if not then it might be more complicated and could be a hardware issue somewhere,

no in he power supply , but on the motherboards power regulation area, you have to be real good at soldering 4 layer board and have the right tools . its not an easy job even if your skilled, one bit of heat too much and you fry the board. there are techniques to this that you can only learn by doing.the caps are apparent if you are a tech. the most you should attempt is to just purchase a replacement board.I see these board available on ebay for 40.00 including shipping.

Thats a link to info about bios updates on the tosh website. If you're not getting to the toshiba screen then POST has not completed which means that either there's a hardware problem or the bios is corupt. If you're sure the RAM is ok try flashing the Bios.

Problem is though, to make the bios update disc, you need a working computer.

Bad RAM probably bad system board. You say there are flashes usually you can check any available beep or flash codes. Sometimes they will tell you what has malfunctioned. Check the mfg. website or manual for diagnostic codes.
As for the external monitor you will have to press function F4 or F8 or whatever function key you have with a monitor picture to switch to the external display.
Hack